Hi,my dear angel, welcome to Jacenvly, our products are cheap and good quality, price is fair, you can't miss it. If this product is not your style, please click on our store, we have many kinds of products, there will be you like and suits you. If you have any questions about your purchase, please send us the first message, we offer world class customer service to make your purchase without your worries. Have a nice day. Dog Mini Tracking lost Device Tool Pet Locator Features: new and Bluetooth version 4.0, ultra-thin design, easy to carry. Automatic alarm effective range. Ringing bell plus vibration alarm, a variety of tones can be adjusted Compatible with 4s/5,5s,5c, mini.ITouch5, 3/4. Replaceable button battery. Low power Bluetooth technology, battery life up to eight months. Location function. It is convenient for you to check the last position of the on the mobile phone. A mobile phone, support up to 8 a-nti - loss device management. Bluetooth connection with mobile phone, two-way search function, can be connected to 8 sets of a-nti-loss device. In the connected state, when the a-nti-loss device exceeds the set Bluetooth range, the phone and the a-nti-loss device will alarm at the same time. Mobile phone can check the map location when the a-nti-loss device is disconnected. Provide the function of no disturb, can set the within a certain period of time, to the interruption in work and other important time. Through the - loss device to control the phone shooting function, remote selfie. Through the - loss device to control the phone recording function. Material: ABS Specification: Bluetooth new 4.0 technology, very low power consumption, button battery CR2032 power supply, standby more than 10 months, easy to replace. Support IOS system and ANDROID system 4.3 or above (bluetooth 4.0 required) loss device looks beautiful fashion, 4 main colors (white, black, red and blue optional) and can match each other, provide unlimited combination space Bluetooth version: Bluetooth 4.0 Compatible mobile phones: Bluetooth 4.0 smartphones with iOS 11.0 or higher and Andriod9.0 or higher (APP is subject to real-time updates) Working distance: 10 meters Net weight: 8 grams Gross weight: 12 grams (in bags) Size: 3.8*1CM Available colors: black/whiteue/green/pink/red Battery: CR2032 APP: iSearching/Kindelf Positioning function. It is convenient for you to check the last position of the on your phone Suitable for: wallets, keys, bags and other items Package Contents: 1X -lost device new and Bluetooth version 4.0, ultra-thin design, easy to carry. Automatic alarm effective range. Ringing bell plus vibration alarm, a variety of tones can be adjusted Compatible with 4s/5,5s,5c, mini.ITouch5, 3/4.